:root {
  --bg: #f5f6f7;
  --surface: #ffffff;
  --text: #151922;
  --muted: #667085;
  --line: #e3e7ee;
  --green: #00c853;
  --blue: #2962ff;
  --blue-soft: #eaf0ff;
  --shadow: 0 18px 50px rgba(21, 25, 34, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(20px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(21, 25, 34, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 850;
}

.brand img,
.cta-section img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--text);
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 480px);
  align-items: center;
  gap: clamp(28px, 6vw, 88px);
  min-height: calc(100vh - 72px);
  padding: clamp(44px, 7vw, 92px) clamp(20px, 5vw, 72px) 52px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 650px;
  margin-bottom: 18px;
  font-size: 88px;
  line-height: 0.96;
  font-weight: 900;
}

.hero-text {
  max-width: 560px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 148px;
  min-height: 48px;
  padding: 13px 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 850;
}

.store-btn.primary {
  background: var(--green);
  color: #ffffff;
  box-shadow: 0 10px 28px rgba(0, 200, 83, 0.26);
}

.store-btn.secondary {
  background: var(--blue);
  color: #ffffff;
  box-shadow: 0 10px 28px rgba(41, 98, 255, 0.24);
}

.screenshot-stage {
  display: flex;
  justify-content: center;
  min-height: 620px;
}

.hero-screenshot {
  position: relative;
  width: min(100%, 330px);
  aspect-ratio: 9 / 13.8;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid rgba(21, 25, 34, 0.1);
  border-radius: 38px;
  box-shadow: var(--shadow);
}

.hero-screenshot img {
  display: block;
  width: 100%;
  height: 122%;
  object-fit: cover;
  object-position: 50% 28%;
}

.phone-status {
  width: 90px;
  height: 6px;
  margin: 0 auto 24px;
  background: #151922;
  border-radius: 999px;
}

.app-top,
.tab-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.app-top span {
  color: var(--text);
  font-size: 24px;
  font-weight: 900;
}

.progress-track {
  height: 7px;
  margin: 18px 0 22px;
  overflow: hidden;
  background: #eef1f6;
  border-radius: 999px;
}

.progress-fill {
  width: 62%;
  height: 100%;
  background: var(--green);
  border-radius: inherit;
}

.word-card {
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(21, 25, 34, 0.08);
}

.word-card small,
.drop-card small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.word-card h2 {
  margin: 18px 0 10px;
  font-size: 34px;
  line-height: 1.05;
}

.word-card p {
  margin-bottom: 18px;
  color: var(--muted);
  font-weight: 750;
}

.input-preview {
  min-height: 48px;
  padding: 14px 15px;
  border: 2px solid var(--line);
  border-radius: 14px;
  color: #98a2b3;
  font-weight: 850;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

.button-row span,
.button-row strong {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 999px;
  font-size: 14px;
}

.button-row span {
  background: var(--blue-soft);
  color: var(--blue);
}

.button-row strong {
  background: var(--green);
  color: #ffffff;
}

.drop-card {
  position: absolute;
  right: 24px;
  bottom: 96px;
  left: 24px;
  padding: 22px;
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.drop-card strong {
  display: block;
  margin-top: 48px;
  color: var(--blue);
  font-size: 28px;
}

.tab-bar {
  position: absolute;
  right: 18px;
  bottom: 18px;
  left: 18px;
  min-height: 56px;
  padding: 0 14px;
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.tab-bar .active {
  color: var(--green);
}

.proof-strip,
.section-block,
.screens-section,
.cta-section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 72px clamp(20px, 4vw, 32px);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 28px;
}

.proof-strip div,
.feature,
.screen-shot {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.proof-strip div {
  padding: 22px;
}

.proof-strip strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.proof-strip span {
  color: var(--muted);
  line-height: 1.45;
}

.section-heading {
  max-width: 660px;
  margin-bottom: 30px;
}

.section-heading h2,
.split-section h2,
.cta-section h2 {
  margin-bottom: 12px;
  font-size: 52px;
  line-height: 1.04;
  font-weight: 900;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature {
  padding: 28px;
}

.feature-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 28px;
  background: var(--blue-soft);
  color: var(--blue);
  border-radius: 999px;
  font-weight: 900;
}

.feature h3 {
  margin-bottom: 10px;
  font-size: 26px;
}

.feature p,
.split-section p,
.cta-section p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
}

.language-panel {
  margin-top: 24px;
}

.language-panel h3 {
  margin-bottom: 14px;
  font-size: 16px;
  font-weight: 900;
}

.language-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.language-grid span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 8px 13px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
}

.screens-section {
  max-width: none;
  background: #ffffff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.screens-section .section-heading,
.screen-grid {
  max-width: 1180px;
  margin-right: auto;
  margin-left: auto;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.screen-shot {
  min-height: 260px;
  padding: 22px;
  background:
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(140deg, rgba(0, 200, 83, 0.45), rgba(41, 98, 255, 0.45))
      border-box;
  border: 1px solid transparent;
}

.screen-shot.has-image {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
}

.screen-shot.has-image img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 13.8;
  object-fit: cover;
  object-position: 50% 28%;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(21, 25, 34, 0.08);
}

.screen-shot span {
  display: inline-flex;
  margin-bottom: 126px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.screen-shot.has-image span {
  margin-bottom: 10px;
}

.screen-shot strong {
  display: block;
  font-size: 20px;
  line-height: 1.2;
}

.split-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(24px, 6vw, 86px);
  align-items: start;
}

.cta-section {
  text-align: center;
}

.cta-section img {
  width: 56px;
  height: 56px;
  margin-bottom: 18px;
  border-radius: 14px;
}

.cta-section p {
  max-width: 560px;
  margin: 0 auto 24px;
}

.cta-section .hero-actions {
  justify-content: center;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 4vw, 56px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer span:first-child {
  color: var(--text);
  font-weight: 900;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 54px;
  }

  .screenshot-stage {
    min-height: auto;
  }

  .hero-screenshot {
    width: min(100%, 360px);
    aspect-ratio: 9 / 16;
    border-radius: 34px;
  }

  .hero-screenshot img {
    height: 100%;
    object-position: 50% 0;
  }

  .proof-strip,
  .feature-grid,
  .screen-grid,
  .split-section {
    grid-template-columns: 1fr;
  }

  .screen-shot {
    min-height: 210px;
  }

  .screen-shot span {
    margin-bottom: 88px;
  }
}

@media (max-width: 520px) {
  .site-header {
    min-height: 64px;
  }

  h1 {
    font-size: 64px;
  }

  .hero-text {
    font-size: 19px;
  }

  .section-heading h2,
  .split-section h2,
  .cta-section h2 {
    font-size: 42px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .store-btn {
    width: 100%;
  }

  .hero-screenshot {
    width: 100%;
    border-radius: 30px;
  }

  h1 {
    font-size: 50px;
  }

  .section-heading h2,
  .split-section h2,
  .cta-section h2 {
    font-size: 34px;
  }

  .word-card {
    padding: 20px;
  }

  .drop-card strong {
    font-size: 24px;
  }

  .proof-strip,
  .section-block,
  .screens-section,
  .cta-section {
    padding-top: 56px;
    padding-bottom: 56px;
  }
}